What are the limitations of the 'first conversion guarantee'?

I've just learned about this tool and I think the guarantee is awesome, but I have an XD file with around 10 pages that I'd like to convert to a Wordpress theme.

The majority of the pages are just variations of the homepage. Just the same content re-arranged. No fancy sliders.

(home, article, shop, product, landing, profile, bbpress [3])

I'd like to know the limitation of the guarantee to ensure I don't get stuck with a perfect homepage without enough platform knowledge to convert the rest of the pages.

Best,

~Dev

Homepage shown below.